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2-Brom-1,1-diphenyl-cyclopentan, also known as 2-bromo-1,1-diphenylcyclopentane, is an organic compound with the molecular formula C17H17Br. It is a colorless to pale yellow crystalline solid that is insoluble in water but soluble in organic solvents such as ethanol and acetone. 2-Brom-1,1-diphenyl-cyclopentan is primarily used as an intermediate in the synthesis of various pharmaceuticals, agrochemicals, and other specialty chemicals. It is characterized by its unique structure, which includes a cyclopentane ring with two phenyl groups attached to the same carbon atom and a bromine atom at the 2-position. Due to its reactivity and structural properties, 2-bromo-1,1-diphenylcyclopentane is a valuable building block in organic chemistry, enabling the creation of a wide range of complex molecules.

3666-91-9

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3666-91-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3666-91-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,6,6 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 3666-91:
(6*3)+(5*6)+(4*6)+(3*6)+(2*9)+(1*1)=109
109 % 10 = 9
So 3666-91-9 is a valid CAS Registry Number.
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